With increasing numbers of post-war baby boomers beginning to face old age, devices assisting people remain mobile as they grow older will become big business. Honda, which started out making motorcycles, has anticipated the needs of an aging population and invested heavily in mobility robotics research. The company is planning to demonstrate its prototype walking assist devices as part of a technical exhibition at the 2009 Society of Automotive Engineers (SAE) World Congress, at Detroit's Cobo Center, from April 20 to 23.